Home / 43,877.05-65,791.26-20,490.73

Finding the Fourth Proportional to 43,877.05, 65,791.26 and 20,490.73

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Solution

The fourth proportional to 43,877.05, 65,791.26 and 20,490.73 is: 30,724.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,877.05 : 65,791.26 = 20,490.73 : x
  2. Step 2: Convert to fraction form
    43,877.05/65,791.26 = 20,490.73/x
  3. Step 3: Cross multiply
    43,877.05x = 65,791.26 × 20,490.73
  4. Step 4: Simplify right side
    43,877.05x = 1,348,110,780.54
  5. Step 5: Solve for x
    x = 1,348,110,780.54/43,877.05
  6. Step 6: Final answer
    x = 30,724.74

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.